package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class jdbc_Demo7 {
    public static void main(String[] args) {
        try(Connection connection=DBUtil.getConnection()){
            String sql="SELECT id,username,password,nickname"+
                       "FROM user"+
                       "WHERE username=? AND password=?";
            PreparedStatement ps=connection.prepareStatement(sql);
            ps.setString(1,"范传奇");
            ps.setString(2,"123456");

            ResultSet rs=ps.executeQuery();
            if(rs.next()){
                System.out.println("登陆成功");
            }else {
                System.out.println("登陆失败 ");
            }
        }catch (Exception e){
            e.printStackTrace();
        }
    }
}
